Baseline characteristics of participants
| Intervention group (n=244) | Control group (n=284) | |
| Gender | ||
| Female | 130 (53.3%) | 142 (50.0%) |
| Male | 113 (46.3%) | 141 (49.6%) |
| Transgender | 1 (<1%) | 1 (<1%) |
| Mean age in years | 21.3 (3.5) | 21.3 (3.6) |
| Age group (years) | ||
| 16–19 | 96 (39.3%) | 118 (41.5%) |
| 20–24 | 96 (39.3%) | 110 (38.7%) |
| 25–30 | 52 (21.3%) | 56 (19.7%) |
| Sexual orientation | ||
| MSM | 14 (5.7%) | 21 (7.4%) |
| Other | 224 (91.8%) | 258 (90.8%) |
| Refused | 6 (2.5%) | 5 (1.8%) |
| Partners in last 12months | ||
| 1 | 111 (45.5%) | 123 (43.3%) |
| 2 or more | 133 (54.5%) | 161 (56.7%) |
| Ethnic group | ||
| White/white British | 176 (72.1%) | 194 (68.3%) |
| Black/black British | 18 (7.4%) | 25 (8.8%) |
| Asian/Asian British | 33 (13.5%) | 34 (12.0%) |
| Mixed/multiple ethnicity | 14 (5.7%) | 26 (9.2%) |
| Other | 3 (1.2%) | 5 (1.8%) |
Data are n (%) or mean (SD).
The sociodemographic characteristics of ‘never’ and ‘ever’ testers within the full RCT sample are presented in online supplementary file 2.
RCT, randomised controlled trial.